– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 4 am Mon 13 Apr Local TimeUpdates in: hr min sUpdate imminent
Issued: 4 am Mon 13 Apr Local Time
Updates in:
Update imminent hr min s
Issued: 4 am Mon 13 Apr Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–3 Weather SummaryHeavy rain (total 27mm), mostly on Tue afternoon. Becoming colder with a light covering of snow ,mostly falling on Tue night. Freeze-thaw conditions (max 6°C on Mon morning, min -2°C on Tue night). Wind will be generally light. | Days 4–6 Weather SummaryLight rain (total 5mm), mostly falling on Sat night. Very mild (max 10°C on Sat afternoon, min 1°C on Thu morning). Wind will be generally light. | |||||||||||||||||
Monday 13 | Tuesday 14 | Wednesday 15 | Thursday 16 | Friday 17 | Saturday 18 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 | |  |  |  |  |  | |  |  | |  | | | |  | | | |
light rain | light rain | light rain | mod. rain | heavy rain | snow shwrs | light snow | light snow | some clouds | rain shwrs | rain shwrs | rain shwrs | rain shwrs | light rain | light rain | some clouds | light rain | light rain | |
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
— | — | — | — | — | 4 | 2 | 2 | — | — | — | — | — | — | — | — | — | — | |
1.4 | 0.7 | 3 | 6 | 11 | 5 | — | — | — | 0.4 | 1.2 | 0.1 | 0.6 | 1 | 0.2 | — | 0.1 | 1.2 | |
max °C | 6 | 6 | 5 | 3 | 4 | 4 | 1 | 2 | 0 | 3 | 4 | 2 | 3 | 5 | 3 | 6 | 10 | 7 |
min °C | 6 | 6 | 3 | 3 | 3 | -2 | -1 | 2 | -2 | 1 | 3 | 1 | 2 | 4 | 2 | 4 | 9 | 7 |
5 | 5 | 0 | 0 | -1 | -2 | -1 | 0 | -2 | 1 | 2 | 1 | 2 | 4 | 2 | 4 | 8 | 6 | |
1350 | 1400 | 1100 | 1000 | 1100 | 400 | 650 | 750 | 450 | 850 | 1000 | 700 | 950 | 1100 | 850 | 1300 | 1850 | 1950 | |
Cloud base (m) | 600 | 600 | 550 | 550 | 550 | 550 | 600 | 600 | 600 | 600 | 650 | 650 | 600 | 650 | 650 | 2400 | 2250 | 1650 |
 | 6:20 | — | — | 6:18 | — | — | 6:16 | — | — | 6:15 | — | — | 6:13 | — | — | 6:11 | — | — |
 | — | 7:55 | — | — | 7:57 | — | — | 7:59 | — | — | — | 8:00 | — | — | 8:01 | — | — | 8:02 |
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South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: Heavy rain (total 27mm), mostly on Tue afternoon. Becoming colder with a light covering of snow ,mostly falling on Tue night. Freeze-thaw conditions (max 6°C on Mon morning, min -2°C on Tue night). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
Light rain (total 5mm), mostly falling on Sat night. Very mild (max 10°C on Sat afternoon, min 1°C on Thu morning). Wind will be generally light.
This table gives the weather forecast for South Twin Sister at the specific elevation of 500 m. Our advanced weather models allow us to provide distinct weather forecasts for several elevations of South Twin Sister. To see the weather forecasts for the other elevations, use the tab navigation above the table. For a wider overview of the weather, consult the Weather Map of Washington.